The calculated distance (air line) between Eupen and Molenbeek-Saint-Jean is approximately 77 miles respectively 124 kilometers.
By car or train, the actual journey to Molenbeek-Saint-Jean is certainly longer, as only the direct route (as the crow flies) between Eupen and Molenbeek-Saint-Jean has been calculated here.
Air line (approximately)
124 kilometers
67 nautical miles